abmistead bust



(No Model.)

* A.'RUST.

BUNG.

Patented May 31,1887;

' IRA/57x70 WWW f6) elarngf Mag.

[M55555 MM Ahw UNITED STATES PATENT OFFICE.

. ARMISTEAD RUST, OF THE UNITED STATES NAVY.

BUNG.

SPECIFICATION forming part of Letters Patent N0. 364,188, dated May 31, 1887.

Application filed January l i, 1887. Serial No. 224.372. {No model.)

To aZZ whom it may concern:

Be it known that I, ARMISTEAD RUST, naval cadet, United States Navy, serving on board the United States flagship Tennessee, a citizen of the United States, have invented a new and useful Bung forBarrels, Casks, and other Similar Vessels, of which the following is a specification.

This invention relates to certain improve ments in bungs forbarrels, casks, and other vessels; and it has for its objects to provide a bung which, when properly secured in the opening of the vessel, cannot be forced out by pressure from within and cannot be forced in ward by outward pressure, while at the same time it can be readily removed, when desired, and will make a perfectly gas-tight seal when in place, as more fully specified hereinafter. These objects I attain by the means illustrated in the accompanying drawings, in which Figure 1 represents a sectional view of a barrel and my improved bung, showing the same seated in the opening and ready to be secured therein to seal the same. Fig. 2 represents a similar view, showing the bung secured to its seat. Fig. 3 represents a top view of the bung, and Fig. 4 a bottom view of the same.-

Referring to the drawings, the letter A indicates the body of the bung, which may be constructed of any suitable material, preferably, however, of wood.

The body A is formed in theshape, substantially, of a truncated cone, and has a central recess, 'G,in its upper end, for the purposehereinafter described. The lower end of said body is provided with an annular rabbet, in which is secured an elastic skirt, D, and it has also a central aperture, through which extends a threaded bolt, B, having a head, 13, at its lower end. The said bolt at its upper end has a polygonal headed nut, c, screwed upon it, the nut being located in the recess 0, so as to be out of the on the outside and inside, as indicated by the L letters d and d, the outer beveled portion fornr ing a seat for the beveled portion of the truncated bung, as shown in Figs. 1 and 20f the drawings, and the inner beveledportion of the opening a seat for the skirt D when expanded.

The operation of my invention will be read ily understood in connection with the above description, and is as follows: The bung with the parts in position, as shown in Fig. 1 of the drawings, is inserted in the opening in the barrel or cask, the truncated body seating itself in the outer beveled portion of said opening. The polygonal nut is then turned by means of a suitable key, so as to draw the truncated plug into the tubular skirt and bind it against the inner beveled portion'of opening, thus securing the bung against inward or outward movement and making an airtight seal.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

The combination, with a barrel, cask, or vessel having an inwardly and outwardly chamfered opening,of the truncated bung-body, the

truncated plug, the tubular elastic skirt, and

the clamping screw and nut, whereby the bung is secured to its seat, substantially as specified.

ARMISTEAD RUST. Witnesses:

ALBERT BURNSTINE, W. W. GILMER. 

